Home / 124,577.28-186,931.53-54,505.80

Finding the Fourth Proportional to 124,577.28, 186,931.53 and 54,505.80

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Solution

The fourth proportional to 124,577.28, 186,931.53 and 54,505.80 is: 81,787.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,577.28 : 186,931.53 = 54,505.80 : x
  2. Step 2: Convert to fraction form
    124,577.28/186,931.53 = 54,505.80/x
  3. Step 3: Cross multiply
    124,577.28x = 186,931.53 × 54,505.80
  4. Step 4: Simplify right side
    124,577.28x = 10,188,852,587.87
  5. Step 5: Solve for x
    x = 10,188,852,587.87/124,577.28
  6. Step 6: Final answer
    x = 81,787.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.